2% of the computer chips manufactured by a company are defective. If 8 samples are picked at random,find the probability that 2 of them are defective. @agent0smith just to double check my answer..

Question

agent0smith · Answer

Looks like binomial probability, P(X=2).

marc_d · Answer

i got 0.009921 as my answer..

agent0smith · Answer

Show your work. It's binomial with 
n=8
x=2
p=0.02
q=1-p=0.98

agent0smith · Answer

Seems reasonable, though, your value.

marc_d · Answer

yep,i don't hv the answer from book..so,i decided to double-check my answer..$$p(x=2)=8c_2(0.02)^2(o.98)^6$$

marc_d · Answer

Thank you @agent0smith

agent0smith · Answer

That looks right.

marc_d · Answer

^